/* =========================
   共通設定・変数
========================= */
:root {
  --main-blue: #0a2a66;
  --accent-blue: #1e5bd6;
  --accent-red: #d32f2f;
  --accent-gold: #e6c24b;

  --side-padding-pc: 24px;
  --side-padding-sp: 16px;

  --max-width: 1200px;
}

* {
  box-sizing: border-box;
}

/* =========================
   全体
========================= */
body {
  margin: 0;
  font-family: "Helvetica Neue","Hiragino Sans", "Yu Gothic", Meiryo, sans-serif;
  background: linear-gradient(180deg, #0a2a66 0%, #071c44 100%);
  color: #222;
  line-height: 1.4;
}

/* =========================
   レイアウト幅・左右統一
========================= */
header,
nav,
main,
footer {
  max-width: var(--max-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--side-padding-pc);
  padding-right: var(--side-padding-pc);
}

/* =========================
   ヘッダー
========================= */
header {
  background: linear-gradient(
    135deg,
    #0a2a66 0%,
    #143d8f 60%,
    #1e5bd6 100%
  );
  color: #ffffff;
  text-align: center;
  padding: 36px 0;
  border-bottom: 6px solid var(--accent-gold);
}

header h1 {
  margin: 0;
  font-size: 30px;
  letter-spacing: 0.08em;
}

.subtitle {
  margin-top: 8px;
  font-size: 14px;
  opacity: 0.9;
}

/* =========================
   ナビゲーション
========================= */
nav {
  background: #ffffff;
  border-bottom: 3px solid var(--accent-gold);
  text-align: center;
  padding: 12px 0;
}

nav a {
  color: var(--main-blue);
  text-decoration: none;
  margin: 0 18px;
  font-weight: bold;
  font-size: 15px;
  position: relative;
}

nav a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -6px;
  width: 0;
  height: 3px;
  background: var(--accent-red);
  transition: width 0.2s ease;
}

nav a:hover::after {
  width: 100%;
}

/* =========================
   メイン
========================= */
main {
  background: #ffffff;
  margin-top: 24px;
  padding: 32px 10px;
  box-shadow: 0 10px 30px rgba(0,0,0,.15);
}

/* =========================
   見出し
========================= */
h2 {
  margin-top: 0;
  font-size: 22px;
  padding-left: 14px;
  border-left: 8px solid var(--accent-red);
  color: var(--main-blue);
}

/* =========================
   テーブル
========================= */
table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 14px;
}

th,
td {
  border: 1px solid #d0d0d0;
  padding: 10px 12px;
  font-size: 15px;
}

th {
  background: linear-gradient(90deg,#e9eef7,#f6f8fb);
  white-space: nowrap;
}

table.teams tr:hover {
  background: #fff6d8;
}

/* =========================
   round タブ
========================= */
.round-tabs {
  display: flex;
  gap: 8px;
  margin-bottom: 20px;
  flex-wrap: wrap;
}

.round-tab {
  padding: 6px 16px;
  border-radius: 999px;
  border: 1px solid #ccc;
  background: #f2f2f2;
  cursor: pointer;
  font-size: 14px;
}

.round-tab.active {
  background: var(--accent-blue);
  color: #fff;
  border-color: var(--accent-blue);
}

/* =========================
   対戦カード
========================= */
#matchList {
  padding: 0 20px;
}

.match-card {
  width: 100%;
  max-width: 1100px;
  margin: 22px auto;
  padding: 22px 18px;
  background: linear-gradient(180deg,#ffffff,#fafbff);
  border-radius: 14px;
  box-shadow:
    0 6px 18px rgba(0,0,0,.08),
    0 1px 0 rgba(255,255,255,.9) inset;
  text-align: center;
  transition: transform .2s ease, box-shadow .2s ease;
}

.match-card:hover {
  transform: translateY(-3px);
  box-shadow:
    0 12px 28px rgba(0,0,0,.12),
    0 1px 0 rgba(255,255,255,.9) inset;
}

/* 上部：日時・会場 */
.match-meta {
  font-size: 12px;
  color: #667;
  margin-bottom: 10px;
  letter-spacing: .03em;
}

.match-meta .stadium {
  margin-top: 3px;
  font-weight: 500;
}

/* 中央：チーム vs */
.match-main {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 5px;
}

.team .school {
  font-size: 18px;
  font-weight: 700;
  white-space: nowrap;
}

.team .area {
  font-size: 12px;
  color: #666;
  margin-top: 3px;
}

/* スコア */
.score-wrap {
  min-width: 90px;
}

.score {
  font-size: 28px;
  font-weight: 800;
  letter-spacing: .05em;
}

.score.vs {
  color: var(--accent-red);
  letter-spacing: .18em;
}

/* PK / 延長 */
.match-extra {
  margin-top: 8px;
  font-size: 14px;
  font-weight: 700;
  color: var(--accent-red);
}

/* クリック可能 */
.match-card.clickable {
  cursor: pointer;
}

/* =========================
   フッター
========================= */
footer {
  background: #ffffff;
  border-top: 4px solid var(--accent-gold);
  text-align: center;
  margin-top: 32px;
  padding: 18px 0;
  font-size: 12px;
  color: #555;
}

/* =========================
   スマホ
========================= */
@media (max-width: 850px) {
  header,
  nav,
  main,
  footer {
    padding-left: var(--side-padding-sp);
    padding-right: var(--side-padding-sp);
  }

  body{
    font-size:14px;
  }

  header h1 {
    font-size: 22px;
  }

  nav a {
    margin: 0 10px;
    font-size: 14px;
  }

  main {
    margin-top: 16px;
    padding: 20px 5px;
  }

  h2 {
    font-size: 19px;
  }

  #matchList {
    padding: 0 12px;
  }

  .match-card {
    padding: 16px 14px;
    border-radius: 12px;
  }

  .score {
    font-size: 20px;
  }

  .team .school {
    font-size: 16px;
  }
}